Process of applying corner-irons to tables



March 29, 1932.

w. BE-RSSENBRUGGE 1 Filed March 22. 1928 Patented Mar. 29, 1932 Unitesrains ATENT DFFICE ZPROGESS OF APPLYING CORNER-IRONS TO TABLES Originalapplication filed March 22, 1928, Serial No, 263,808. Divided and thisapplication filed. February 23, 1929. Serial No. 342,087.

l and to the process of applying such irons;

and one of the objects of the invention is the provision of an improvedprocess for applying corner irons so as to eliminate the necessity ofusing auxiliary fasteners, but which secures the corner irons in placein interlocked engagement with the top of the table.

A further object of the invention is the provision of a new and improvedprocess of the above character wherein the corner iron is applied to thetable and interengaged therewith in such manner as to preventdisplacement through a single movement, whereby a number of the cornerirons may be quickly and readily applied in a very short space of time.

A further object of the invention is the provision of a novel process ofthe above character wherein the corner iron is readily placed inposition in a semi-formed condition and through the operation ofclamping members, parts of the iron are imbedded in a portion of thetable top so as to securely retain the iron against movement after beingclamped in position.

WVith the above and other objects in view, the invention consists in thenovel features of construction, the combination and ar-' rangement ofparts hereinafter more fully set forth, pointed out in the claim, andshown in the accompanying drawings wherein:

Figure 1 is a detailed top plan view of the portion of the table withthe corner in position adjacent one of the clamping members;

Figure 2 is a detailed section on the line 22 of Figure 1 showing theclamping members in a clamped position;

Figure 3 is a view similar to Figure 2, showing the relative position ofthe corner arm and the clamps prior to the movement toward each other ofthe clamping members;

Figure 4 is adetailed section through the guide member with the movableclamping member shown in top plan view and with its stem in section; p I

Figure 5 is a View from the under side of one of the corners of thetable;

Figure 6 is a side elevation of the corner iron; and

Figure 7 is a perspective view of the corner Referring to the drawingswherein I have illustrated the steps employed in my improved process, itwill be noted that in Figure 1' I have illustrated one corner of a tabletop 1. These tabletops in the construction are usually provided alongtheir outer edges with a groove 2 in which the cover applied to thetable is secured, and it is in this groove that one portion of thecorner iron is fitted for retaining the same in position.

In Figure 6, I have illustrated a side elevation of the corner ironwhich includes an angular body 3 having arms 4: at one end which arepositioned at right angles to each other to correspond with the cornerof the table, and these arms while illustrated as areuat-e incross-section may be made of various shapes according to the type ofthe. table to which the corner iron is to be applied. At the other endof the body, I provide the tapering prongs 5 which are also disposed atright angles to each other and provided with a penetrating point forpenetrating thematerial of the table top. It will be apparent that thebody of the corner iron may be made in fanciful designs but preferablyangular in shape.

In applying the corner iron to the table top, I use die members one ofwhich is stationary and the other movable, the stationary die beingdesignated by the numeral 6 and the movable die designated by thenumeral 7 These die members area part of my improvedmas chineillustrated in my before mentioned patent, the constructionand operationof which is fully explained in said patent. The stationary die'member 6is provided with an arcuate recess 8 adapted to embrace the arcuate arms4 of the corner iron, it being understood that the stationarydie memberis a of right-angular form and the recess 8 extending through bothangular portions of the die.

, "The movable diemember 7 is formed with securely retain the ironangularly disposed arcuate depressions 9 adapted to co-operate with thetongues 5 in the application of the corner iron. In placing the corneriron in position and clamping the same to the table top, theironis firstpositioned with the arms 4- engagi'ng over the edge of the side walls ofthe-tabletop with the inner edges of the arms at extending into thegroove2 as illustrated in Figure. 3. The corner is then positionedbetween the -die;

members as shown in Figure 3 and the die member? moved toward the diemember 6, the prongs 5'co-0perating with the depressions 9, the'shape'ofthe depressions causing the prongs to be bent upon themse'lvesso thatthe points thereoffwil-lbe forced into engagement with theunder sideofthe edges of the table top "as-shown'in Figure 2. The movement of thedie member 7 is sulficientto cause the points ofthe prongs 5 topenetrate "the material of the table top so as to securely retain thecorner irons against movement.

In Figure'5, I haveillustrated a bottom or underside View of the tabletop showing hoW the prongs 5 penetrate the material of the tabletop and"imbed themselves so as to members against movement.

I claim:

The process of locking corner-irons of the type embodying arcuate topflanges, depending side walls and straight penetrating prongs to thecorners of tables, which consists in fi'rstengagin-g the top flangesovernthe table top, with the penetrating prongs disposed lowermost;second, positioning the corneriron between companion die members havingarcuate faces for engaging the upper and :lower ends of the corner-iron;third, applying pressure to the ends of the corner-iron through themedium of said die members, whereby the arcuate flanges of thecorner-iron are vurged into penetrating engagement with one face 'of'thecorner of thetableand the penetrating prongs are'retained' inhookedengagement with the other face of the corner of the table.

In "testimony that I claim the foregoing I havehereunto se't my hand atMilwaukee, in

the county of 'Milwaukee and State of. VVisconsin.

' WILLIAM BERSSENBRUGGE.

The process is extremely simple due to the 7 turn'the tpron'gs 5 andcause the points thereofto i'mbed themselves in the-material of thetable top.

It will'be apparent from the above that I have provided a simple andeflici'ent process for applying corner irons to table tops, whereby agreat many of the corner irons will be applied in a very short space oftime; and if the process is carried out with 'the'use 'ofmy improvedmachine as stated heretofore,

it'will salve considerable expense in placingthis type of table on themarket, which is 7 generally used as a card-table or'the like,

While Ihave shown and described thepreferred embodiment of my invention,it; will 7 beapparent that slight changes may be made in theconstructionwhen putting theinvention into practice Without departing from thespirit of :the sameor 't'he 'scop-e of' the appended: claim,

